How to Get Out of PS3 Demonstration Mode on v4.53

Okay guys, I've seen many people having trouble with CFWs, trying to "uninstall" CFWs, basicaly trying to bring the PS3 to a legit version of firmware.

This tutorial is for you if:

You are stuck in Demonstration Mode Version 4.53

You are trying to get rid of jailbroken firmware and you are afraid of hitting the Demonstration Mode

And here we go:

Step 1: On a flash drive (USB Device) create a folder named PS3 (!respect the caps on both folders!)
Step 2: In the folder called "PS3" create a folder named UPDATE
Step 3: Download and extract the PS3UPDAT.PUP and place it into the UPDATE folder on the flash drive